Read my [Only registered and activated users can see links. ] [and the links in it] back in the CX thread where you've already posted. If you read everything, you will see that if you use the full CX with CN data in it for your city it will work like a detail map, but only for that city. Please post only once the same/similar request. I'll trash OT posts, sorry.

General note for all: the unit in question may not even have had to be cured. It may have been sufficient to properly format it with RMPrepUSB. In the case of an accidental and/or inappropriate reformat, imo that should always be done first if the internal file system is visible under Windows Explorer. If it won't boot and it's also not visible, then cure it. It shortens the process greatly if a proper reformat works though. This includes even accidental FAT reformats done with Windows. [There is more than one way to format in FAT, like there is more than one way to skin a cat ]

If a 1xxx device has no damaged/wrong files stopping it booting and is properly formatted it will boot even without files on it.